<title>Low-Pass Filter (RL)</title>
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<applet codebase="../afilter" code=AFilter.class archive=afilter.jar width=800 height=450>
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<param name=pause value=20>
<param name=startCircuit value="filt-lopass-l.txt">
<param name=startLabel   value="Low-Pass Filter (RL)">
<param name=useFrame     value="false">
</applet>
<p>
This is a low-pass
      filter implemented using a resistor and an inductor.  The
  inductor passes lower frequencies, causing the output voltage to
      fluctuate more.  Higher frequencies are blocked, and there is
      reduced current across the resistor, keeping the
      output voltage closer to ground.
<p>
Below the circuit is the frequency response in
<a href="http://en.wikipedia.org/wiki/Decibel">dB</a> for a range
of frequencies.  You can click on the frequency response graph to see
the circuit in operation at that particular frequency.

<p>
Next: <a href="e-bandpass.html">Band-Pass Filter</a><br>
Previous: <a href="e-filt-hipass-l.html">High-Pass Filter (RL)</a><br>
<a href="/afilter/">Analog Filter Applet</a><br>
<a href="e-index.html#filt-lopass-l">Index</a><br>
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<br>Generated Tue Dec  7 2010
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